Sliver guide for spinning frame cradle assembly

ABSTRACT

A sliver guide is illustrated having a substantially U-shaped bracket defining an opening therein for receiving a flat bar cradle shelf in clamping engagement, a pair of transversely spaced standards are carried by the bracket extending upwardly therefrom, a pair of opposed inner converging surfaces each carried by a respective standard, condense and guide sliver into an entrance nip between apron members, and the standards define an opening at the top therebetween for receiving a sliver laid therein.

United States Patent n91 Slinger [4 Mar. 25, 1975 SLIVER GUIDE FORSPINNING FRAME CRADLE ASSEMBLY [75] Inventor:

[73] Assignee: Progressive Engineering, Inc.,

Rockland, Mass.

[22] Filed: Sept. 4, 1973 [21] Appl. No.: 393,969

George A. Slinger, Greenville, SC.

[52] US. Cl. 19/291 [51] Int. Cl D0lh 5/70 [58] Field of Search 19/255,291, 292,288, 19/150, 246

[56] References Cited UNITED STATES PATENTS 2,079,122 5/1937 Lawton19/291 2,683,290 7/1954 Noguera 19/291 X 3,133,320 5/1964- Swanson19/288 FOREIGN PATENTS OR APPLICATIONS 891,474 12/1943 France 19/254United Kingdom 19/291 United Kingdom 19/246 Primary E.\'amt'nerDorseyNewton Attorney, Agent, or FirmBailey & Dority [57] ABSTRACT A sliverguide is illustrated having a substantially U- shaped bracket definingan opening therein for receiving a flat bar cradle shelf in clampingengagement, :1 pair of transversely spaced standards are carried by thebracket extending upwardly therefrom, a pair of opposed inner convergingsurfaces each carried by a respective standard, condense and guidesliver into an entrance nip between apron members, and the standardsdefine an opening at the top therebetween for receiving a sliver laidtherein.

2 Claims, 3 Drawing Figures therein for receiving the flat bar or cradleshelf 27 therebetween in clamping engagement. The bracket is preferablyconstructed of molded somewhat flexible plastic, such as nylon, and thelegs 28 and 29 are slightly biased towards each other so that the flatbar is received therebetween in resilient clamping engagement.

The sliver guide is preferably molded entirely of suitable plastic, andcarries a pair of transversely spaced standards B extending upwardlytherefrom. The standards B are essentially in the form of posts but theinner surfaces thereof converge, as illustrated at C, and suchconverging surfaces guide and contains the sliver controlling the fibersthereof, immediately prior to their entrance into the nip between theapron members 18 and 19.

As has been previously pointed out, the standards define an opening D atthe top therebetween for receiving a sliver S when laid in by theoperator. During the opening operation, when the end comes down theoperator twists the end for insertion into the trumpet 17 and after thestrand passes through the nip formed by the back bottom roll and theback top roll it is laid by the operator between the standards B of thesliver guide. It is evident that the sliver guide requires no adjustmentand readily permits replacement by another sliver guide affording anindicated different spacing between the standards B. Thus a variety ofsliver weights may be accommodated by simply changing the sliver guides.Since a separate unitary sliver guide is provided for each delivery,there is no problem of adjustment and replacement is easily accomplishedwhen indicated.

While a preferred embodiment of the invention has been described usingspecific terms, such description is for illustrative purposes only, andit is to be understood that changes and variations may be made withoutdeparting from the spirit or scope of the following claims.

What is claimed is:

1. For use in a top roll cradle having a flat bar carried between a pairof spaced side members which support a pair of opposed apron membershaving an entrance nip defined by an entrance between said apronmembers, said bar being positioned'above and closely adjacent saidentrance nip, a sliver guide comprising a substantially U-shapedbracket, a pair of transversely spaced standards carried by said bracketextending upwardly therefrom, a pair of opposed inner convergingsurfaces each carried by a respective standard condensing and guiding asliver into the entrance nip between the apron members, said guide beingconstructed of molded flexible plastic, said bracket having opposed,inner flat surfaces defining an opening therein for receiving said flatbar, said flat surfaces resiliently biased toward each other so thatsaid bar is received therebetween in resilient frictional clampingengagement, and said standards defining an opening at the toptherebetween for receiving said sliver laid therein, whereby the guidesmay be easily replaced when damaged or when a different size isindicated.

2. The structure set forth in claim 1 wherein said bar is disposed in aplane substantially parallel to the path of travel of fibers into saidentrance nip between said apron members.

1. For use in a top roll cradle having a flat bar carried between a pairof spaced side members which support a pair of opposed apron membershaving an entrance nip defined by an entrance between said apronmembers, said bar being positioned above and closely adjacent saidentrance nip, a sliver guide comprising a substantially U-shapedbracket, a pair of transversely spaced standards carried by said bracketextending upwardly therefrom, a pair of opposed inner convergingsurfaces each carried by a respective standard condensing and guiding asliver into the entrance nip between the apron members, said guide beingconstructed of molded flexible plastic, said bracket having opposed,inner flat surfaces defining an opening therein for receiving said flatbar, said flat surfaces resiliently biased toward each other so thatsaid bar is received therebetween in resilient frictional clampingengagement, and said standards defining an opening at the toptherebetween for receiving said sliver laid therein, whereby the guidesmay be easily replaced when damaged or when a different size isindicated.
 2. The structure set forth in claim 1 wherein said bar isdisposed in a plane substantially parallel to the path of travel offibers into said entrance nip between said apron members.